Common Ragweed is a tall, branching plant with small, inconspicuous green flowers. It is notorious for producing large amounts of pollen, which is a major cause of hay fever.
Best time to see a Common Ragweed
The best time to see a Common Ragweed is June–August, when about 61% of U.S. sightings happen, based on 37,831 research-grade iNaturalist observations.
Not certain it is a Common Ragweed? What plant is this? walks through what to check first and the lookalikes that catch people out.
Recent Common Ragweed sightings near you
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